Telematics-based method and system of battery parasitic load validation for a vehicle fleet
AssigneeGM Global Technology Operations LLC
InventorsYilu ZHANG, Dennis F. REGMONT, Nathan AMPUNAN, Mark J. RYCHLINSKI, Krishnaraj INBARAJAN, Haiping SONG
Life of this patent
Estimating the term…
Abstract
Parasitic loads on a vehicular battery are evaluated based on an estimated reduction in the state of charge of the battery over the course of an engine-off state.
Claims20
A process for evaluating parasitic load on an electrical storage battery of a vehicle having an engine and an on-board electrical storage battery, said
- vehicle operative in alternating engine-on and engine-off states, comprising:
- determining a first estimate of the state of charge of the battery substantially just prior to the beginning of an engine-off state or during said engine-off state;
- determining a second estimate of the state of charge of the battery during said engine-off state subsequent to the first estimate of the state of charge determination;
- and
- determining an estimate of the parasitic load of the battery based on the difference between the first and second estimates of state of charge of the battery.
A process for evaluating parasitic load on an electrical storage battery of a vehicle having an engine and an on-board electrical storage battery, said vehicle operative in alternating engine-on and engine-off states, comprising:
- determining an estimate of the parasitic load of the battery based on an estimated reduction in the state of charge of the battery over the course of an engine-off state;
- and
- wirelessly transmitting the estimate of the parasitic load of the battery from said vehicle to computer memory that is remotely-located with respect to said vehicle.
A process for evaluating parasitic load on an electrical storage battery of a vehicle having an engine and an on-board electrical storage battery, said vehicle operative in alternating engine-on and engine-off states, comprising:
- measuring a plurality of vehicle parameters during engine-on and engine-off states;
- wirelessly transmitting said plurality of vehicle parameters from said vehicle to computer memory that is remotely-located with respect to said vehicle;
- and
- remotely determining an estimate of the parasitic load on the battery based on the wirelessly transmitted plurality of vehicle parameters.
Dependencies are inferred from the claim text.